Improvement in carding-machines



' arrows in Fig. 1.

UNITED STATES PATENT OFFICE.,

LAWRENCE OBRIEN, OF INDIANAPOLIS, INDIANA.

IMPROVEMENT IN CRDlNG-MACHINES.

Specification forming part of Letters Patent No. 40,18 l ,dated October G, 1863.

To all whom it may concern:

`Be it known that I, LAWRENCE OBEIEN, of Indianapolis, inthe county of Marion and State of Indiana, have invented a new and useful Improvement in Oarding-Machincs and I do hereby declare that the following is an exact, clear, and full description of the same, reference being had to the accompanying drawings, forming part of this specication, in which- Figure 1 is a vertical section of a machine with my improvement. Fig. 2 is a horizontal section of the same, just below the main cylinder. A

Similar letters of reference indicate corresponding parts in both figures.

Thel object of my invention is to return to the main cylinder ot'a carding-machine all the ber which drops from the machine in the carding operation, and thereby to prevent the machine making any waste; and to this end it consists in a novel arrangement of a cardclothed cylinder or roll in combination with an endless apron below the main cylinder, whereby the fibers dropping from the machine are caught by the said apron and by it delivered to the aforesaid cylinder or roll, by which they are returned to the main cylinder.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is the main cylinder, andB the doffer, which, with the other well-known parts of the carding-Inachine,are constructed and arranged in the usual manner.

C is the endless apron and D the roll, which constitute my invention. The roll O is arranged under the doer, and is driven by a belt from the main cylinder, or by any other suitable means, at such velocity and in sucln direction as to be stripped by the main cylinder, as will be understood by reference to the rI'he apron C, which is arranged under the working parts of the machine, inclines updward from the back or feeding end of the machine to the bottom of the roll, its upper part being nearly close under the said roll and its lower part being brought Very near the floor. The said apron may be composed of a series of slats attached to belts,

so that the dirt may be allowed to fall through it, and it may be driven by a belt from a pulley on the shaft ofits lower roll, E, or by any other suitable means. Its upperroll, F, should be capable of adjustment to set it at a desirable dista-nce from the roll D. The space above the apron is closed up at the feeding end of the machine by a board or plate, G, as shown in Figs. l and 2, and at the other end by the roll I), as shown in the same figure.

In the operation ot' the machine the ber dropping from the main cylinder and other parts of the machine is received upon the apron O, by the upward movement of the upper inclined surface of which it is carried up to the roll D, by which itis given back to the main cylinder and worked up again without waste and without lifting from the apron any of the dirt which is constantly fallingfrom the machine upon the apron. All the particles of dirt pass ,with the apron over the roll F and fall upon the iloor.

I do not claim, broadly, the employment of an endless apron under the main cylinder ot a carding-machine.-

By the interposition between the main cy linder A and apron C of acylinder, D, moving more slowly than the main cylinder and employed to convey droppings thereto from the apron, I am enabled to place the apron more distant from the main cylinder, and thus the recovered fibers are delivered to the machine constantly and uniformly, avoiding the great difficulty7 existing in other machines by reason of the wind from the main cylinder revolving rapidly in too close proximity' to the apron, repelling the bers until they collect in masses on the apron.

What I 'claim as my invention, and de sire to secure by Letters Patent, is

The arrangement ofthe roll D between the endless apron and the main cylinder A, substan tially as and for the purpose herein shown and described.

LAWRENCE OBEIEN. 

